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For quite some time now, Microsoft has included Windows Defender (now known as Windows Security) with Windows PCs. Since its introduction, the program has become the industry standard for essential virus protection on Windows computers. However, users with outdated hardware may find that Windows Defender consumes a significant portion of scarce system resources. Here’s how to turn off Windows Defender in Windows 11, whether you want to lighten the load on your computer, speed up Windows 11, or just get rid of Microsoft’s scheduled protection.
How to disable Windows Defender in Windows 11
Microsoft hasn’t made the process of permanently disabling Defender quick and easy. If you turn it off in “Virus & threat protection settings”, it will turn back to “On” after a short time and without warning. Fortunately, there are several ways to make sure the setting stays off, and we’re about to show you.
Disable Microsoft Defender through Group Policy settings
The first way to disable Defender is through the “Group Policy” security tool. To do just that, follow these steps:
- Click “Start” and then “Settings.”
- Choose “Privacy and security,” “Windows Security,” and then “Virus & threat protection.”
- Under “Virus & threat protection settings”, click “Manage settings”.
- Scroll down to the “Tamper Protection” option and toggle the slider to “Off.”
- Choose “Yes” to confirm “Do you want to allow this app to make changes to your device?” immediate.
- In the “Tamper protection” section, a message will appear indicating that your device may be vulnerable. Use the “x” in the upper right corner to close the window.
- From the taskbar, hit the search icon to enter a search for “Edit Group Policy,” then click the result to launch the Group Policy editor.
- In the application window in the left pane, find “Computer Configuration” and select “Administrative Templates,” then “Windows Components.”
- Scroll down to “Microsoft Defender Antivirus”.
- Look for the setting, “Turn off Microsoft Defender Antivirus” in the right pane.
- Right click on it and choose “Edit”.
- In the pop-up window, check the “Enabled” box, then “Apply” and “OK”.
- Next, find the setting, “Allow antimalware service to always stay running”, then right-click it and press “Edit”.
- This time, check the “Disabled” option, click “Apply” and then “OK”.
- Now find the folder called “Real Time Protection” and double click to open it.
- Right-click on the “Turn off real-time protection” setting and then select “Edit”.
- Check the “Enabled” box, click “Apply” and then “OK”.
You have now configured the group policy. You will need to set up a “Task Scheduler” to stop certain services from running to prevent errors once Defender has been disabled. To do this:
- Enter a search for “Task Scheduler” app, then open it.
- Expand the “Task Scheduler Library” folder in the left pane.
- Expand “Microsoft”, “Windows”, then “Windows Defender”.
- Right click and “Disable” the following four tasks:
- Windows Defender cache maintenance
- Windows Defender Cleanup
- Windows Defender Scheduled Scan
- Windows Defender Verification
- To update computer and user policies:
- Open Command Prompt as administrator.
- Run the following command:
gpupdate/force
- Windows Defender has been disabled and will not start with Windows.
Disable Windows Defender by modifying the Registry
Another way to disable Defender protection is by editing the registry. Like the Group Policy setting, this method requires the “Tamper Protection” setting to be disabled to prevent Defender settings from being changed. Follow these steps to do it:
- Click “Start” and then “Settings.”
- Click “Privacy and Security,” “Windows Security,” then “Virus & Threat Protection.”
- Under “Virus & Threat Protection Settings,” click “Manage Settings.”
- Scroll down to the “Tamper Protection” option and toggle the slider to “Off.”
- Choose “Yes” to allow the changes.
- Use the “x” at the top right to close the window.
- Now complete these preliminary steps before editing the registry:
- Right click on the “Start” menu.
- Select “Run” and type “regedit” in the text field, then press “Enter”.
- In Registry Editor, enter the following path in the address field:
HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows Defender
- To edit or add a value to this folder, you must first change the owner. By default, the owner is “System”. Follow these steps to change the owner of the folder:
- Right click on the “Windows Defender” folder and choose “Permissions”.
- Click “Advanced” in the “Permissions for Windows Defender” window.
- In the “Owner” field, click “Change”.
- In the “Advanced Security Settings for Windows Defender” window, click “Advanced”.
- Click “Search Now”, then select the admin account or admin group.
- Click “OK”, then “OK” again to confirm the changes.
- Check the box next to “Replace owner on subcontainers and objects.”
- Check the box next to “Replace all child object permission entries with inheritable permission entries from this object.”
- Click “Apply”, then in the “Windows Security” warning popup, click “Yes”.
- Click “OK” again to close the advanced security settings window.
- Now navigate to the “Permissions for Windows Defender” window, in the “Permissions for everyone” section.
- And to give users complete control by checking “Allow” next to the “Full Control” option.
- Click “Apply” and “OK” to confirm the change.
Finally, to edit the registry:
- Continuing from the “Windows Defender” branch in the “Registry Editor”, create three “DWORD (32-bit)” values. To do this, right-click on any blank space within the right pane and select “New”, then the “DWORD (32-bit) Value” option.
- Name the new values as follows:
- Disable AntiVirus
- Disable AntiSpyware
- ServiceStartStatesServiceStartStates
- Right click on each value, select “Modify”, then change the “Value Data” field to “1”, then “OK”.
- Now close “Registry Editor” and restart your computer.
- Once your computer restarts, “Windows Defender” will be disabled.
Disable Windows Defender using Autoruns
You can also permanently disable Windows Defender using the “Autoruns for Windows” utility tool. That is how:
- Download the latest version of Autoruns for Windows.
- Open the downloaded file and right click on the “Autoruns” folder to “Extract All”. Consider extracting the folder to your desktop for easy access.
- You will now need to disable permanent protection and boot into safe mode, to do this:
- Click the Windows icon on the taskbar, then choose “Settings.”
- Choose “Privacy and security,” “Windows Security,” and then “Virus & threat protection.”
- In the “Virus and threat protection” section, select “Manage settings.”
- Touch the “Real-time protection” and “Tamper protection” sliders to turn them off.
- Next, to put your computer into “Safe Mode”, enter a search to find the “System Configuration” app, then open it.
- Under “System Configuration”, select the “Boot” tab.
- Under “Boot Options”, check the “Secure Boot” box, and the “Minimum” option will be set automatically.
- Press “Apply”, “OK” and then “Restart”.
- Open the “Autoruns” folder on your desktop, click the “Autoruns64.exe” file, then click “Run” to start it.
- An “AutoRun License Agreement” window will appear. If you agree to the terms, click “Accept” to continue.
- In the “Autoruns” window, select the “Services” tab.
- By default, Windows services are hidden. To make them visible, click “Options” in the main menu, then uncheck “Hide Windows entries”.
- Review the list of services for Windows Defender and uncheck the “WinDefend” box. This will disable Windows Defender from automatically starting every time the computer is restarted.
- Now close “Autoruns”, then restart your computer in normal mode.
To restart your computer in normal mode:
- Press the “Search” icon on the taskbar and select “System Settings”.
- Check the “Normal startup” option.
- Click “Apply,” “OK,” and then “Restart.”
- Once your computer has restarted, launch “Task Manager” and check if the Windows Defender service is running, here’s how to do it:
- Open “Settings” to see the status of “Virus & Threat Protection”. To get there, go to: “Privacy and security”, “Windows Security”, “Virus & threat protection”, then “Start”.
- Verify that the ‘Virus & threat protection’ status is set to ‘Unknown’.
Final words: How To Disable Windows Defender In Windows 11
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